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參數(shù)資料
| 型號(hào)： | ICS952621 |
| 英文描述： | Programmable Timing Control Hub⑩ for Next Gen P4⑩ processor |
| 中文描述： | 可編程定時(shí)控制中心⑩處理器的下一代小⑩ |
| 文件頁(yè)數(shù)： | 1/15頁(yè) |
| 文件大小： | 198K |
| 代理商： | ICS952621 |
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Integrated
Circuit
Systems, Inc.
ICS952621
0756A—09/10/04
Pin Configuration
Recommended Application:
CK409 48-pin part
Output Features:
2 - 0.7V current-mode differential CPU pairs
1 - 0.7V current-mode differential CPU pairs for ITP
1 - 0.7V current-mode differential SRC pair
9 - PCI (33MHz), including 3 free running PCI
1 - USB, 48MHz
1 - DOT, 48MHz
2 - REF, 14.318MHz
3 - 3V66, 66.66MHz
1 - 3V66/VCH, selectable 48MHz or 66MHz
Key Specifications:
CPU/SRC outputs cycle-cycle jitter < 125ps
3V66 outputs cycle-cycle jitter < 250ps
PCI outputs cycle-cycle jitter < 250ps
CPU outputs skew: < 100ps
+/- 300ppm frequency accuracy on CPU & SRC clocks
Programmable Timing Control Hub for Next Gen P
4
processor
Functionality
Features/Benefits:
Supports tight ppm accuracy clocks for Serial-ATA
Supports spread spectrum modulation, 0 to -0.5%
down spread and +/- 0.25% center spread
Supports CPU clks up to 400MHz in test mode
Uses external 14.318MHz crystal
Supports undriven differential CPU, SRC pair in PD#
and CPU_STOP# for power management.
48-pin SSOP
FS2
B6b5 FS_A FS_B
0
0
1
1
0
0
1
1
CPU
MHz
100.00 100/200 66.66
200.00 100/200 66.66
133.33 100/200 66.66
166.66 100/200 66.66
200.00 100/200 66.66
400.00 100/200 66.66
266.66 100/200 66.66
333.33 100/200 66.66
SRC
MHz
3V66
MHz
PCI
MHz
33.33 14.318 48.00
33.33 14.318 48.00
33.33 14.318 48.00
33.33 14.318 48.00
33.33 14.318 48.00
33.33 14.318 48.00
33.33 14.318 48.00
33.33 14.318 48.00
REF
MHz
U
SB/
DOT
MHz
0
1
0
1
0
1
0
1
0
1
FS_A/REF1
FS_B/REF0
VDDREF
1
2
3
4
5
6
7
8
9
48 VDDA
47 GND
46 IREF
45 CPUCLKT_ITP
44 CPUCLKC_ITP
43 GND
42 CPUCLKT1
41 CPUCLKC1
40 VDDCPU
39 CPUCLKT0
38 CPUCLKC0
37 GND
36 SRCCLKT
35 SRCCLKC
34 VDD
33 VttPWR_GD#
32 SDATA
31 SCLK
30 3V66_0
29 3V66_1
28 GND
27 VDD3V66
26 3V66_2
25 3V66_3/VCH
X1
X2
GND
PCICLK_F0
PCICLK_F1
PCICLK_F2
VDDPCI 10
GND 11
PCICLK0 12
PCICLK1 13
PCICLK2 14
PCICLK3 15
VDDPCI 16
GND 17
PCICLK4 18
PCICLK5 19
PD# 20
48MHz_DOT 21
48MHz_USB 22
GND 23
VDD48 24
I
**120K
pull-down
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